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[PATCH] synclink.c: add loopback to async mode 

Add internal loopback support for asynchronous mode operation.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Paul Fulghum 2005-09-09 13:02:14 -07:00 committed by Linus Torvalds
parent 9661239f7f
commit 7c1fff58cf
1 changed files with 5 additions and 0 deletions
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5
drivers/char/synclink.c
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@ -6151,6 +6151,11 @@ static void usc_set_async_mode( struct mgsl_struct *info )
usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));
}
if (info->params.loopback) {
info->loopback_bits = 0x300;
outw(0x0300, info->io_base + CCAR);
}
} /* end of usc_set_async_mode() */
/* usc_loopback_frame()